> having to subscribe to a bunch of FOSS email lists at work I appreciate just filling away the mailing lists into a folder for later, way better than Gmail's way with the tags and searching and stuff

Sorry. I feel like I'm bringing up VIM vs. Emacs or something here, but please explain how folders are in any way different from tags and filters.

Why can't you just create a filter that tags your FOSS stuff and then auto-archives it?